"Those products were created long ago, just for Ohio, due to its peculiar law that any alcoholic beverage below a certain proof (40 I believe, or 20% ABV) could be sold in grocery and drug stores, but alcoholic beverages above that proof could only be sold in state stores. The intention was to permit beer and wine to be sold more widely, but by writing it that way they opened the door for these "diluted" spirits products. By federal law, straight spirits like rum, whiskey, tequila and vodka have to be at least 80 proof or they have to be labeled "diluted."